Including Fluent-driven Tool Support Patents (Class 72/245)
  • Patent number: 9583261
    Abstract: A powder magnetic core which exhibits a high compact density and a reduced iron loss can be obtained by compacting a soft magnetic powder in which the mass ratio of soft magnetic powder particles that pass through a filter having an opening of 75 ?m is 95 mass % or higher relative to the whole amount of the soft magnetic powder and which has a mean strain of less than 0.100%.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: February 28, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroyuki Mitani, Takeo Miyamura, Hirofumi Hojo, Tomotsuna Kamijo
  • Patent number: 9016100
    Abstract: A fully hydraulic edging system suitable for use in wide plate mills is disclosed. The need for electro-mechanical screws to effect large movements of the side rollers is avoided by employing a pull-back hydraulic cylinder for this purpose. The main hydraulic cylinders are switched to a non-operational mode during large movements thus avoiding the need for large volumes of hydraulic fluid to be transferred under high pressure.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: April 28, 2015
    Assignee: Siemens PLC
    Inventors: Michael Trevor Clark, John Franey, Martyn Jones, Andrew Mallison
  • Patent number: 8959969
    Abstract: Elimination of play between rolls 13 and main bearings 12 in a non-forming area and forming of material to be formed in a forming area are repeated while play between a housing 10 for the rolls 13 and main bearing axle boxes 11 is always eliminated.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: February 24, 2015
    Assignee: IHI Corporation
    Inventor: Nobuhiro Tazoe
  • Publication number: 20150047404
    Abstract: A vibration damping system by means of a hydraulic actuation system, in particular for rolling mills, comprising at least one hydraulic actuator (1) having a movable part (11) and a corresponding hydraulic feeding circuit (2), and hydraulic damping means (3) for a vibrating force acting on the movable part (11) of the hydraulic actuator (1); the damping means (3) being connected to the hydraulic circuit (2) to actuate a damping of the vibrating force, wherein that the damping means (3) comprise a double chamber cylinder (31) having a first chamber (34) hydraulically connected to the hydraulic circuit (2), and a movable part (35) connected to an electric damping part (32), with the first chamber (34) hydraulically connected to and communicating with the second chamber (33) of the double chamber cylinder (31) by means of a calibrated pipe (36).
    Type: Application
    Filed: March 26, 2013
    Publication date: February 19, 2015
    Inventors: Andrea De Luca, Carlo Vergano, Stefano Del Tedesco, Andrea Tonoli, Carmine Pristera', Nicola Amati
  • Patent number: 8695391
    Abstract: A method and an apparatus for suppression of oscillations in a rolling installation is described. By means of a hydraulic roller engagement third-octave oscillations are effectively suppressed, thus making it possible to improve the quality of the rolled material and/or the productivity of the rolling installation. A manipulated variable is supplied to an electrohydraulic actuating element that acts on at least one hydraulic actuator for the roller engagement and has a rated flow rate of ?50 l/min. At least a portion of the frequency response at frequencies f?80 Hz has a magnitude drop of ?3 dB, and the phase lag ? in this frequency range satisfies the conditions f?19·{square root over (?)}+3.1·10?6·?4 and ?<90°.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: April 15, 2014
    Assignee: Siemens Vai Metals Technologies GmbH
    Inventors: Georg Keintzel, Gerald Hohenbichler
  • Patent number: 8544308
    Abstract: The invention relates to a roll stand comprising at least one roll (1) having a rotation axis (a), said roll being supported in two installed parts (2, 3) disposed in the axial end regions of the roll (1) and each having a center plane (M), wherein the roll (1) can be positioned in the direction perpendicular to the transport direction (F) of the product to be rolled by means of at least one positioning element (4). In order to be able to introduce a bending moment acting counter to the roll bending moment into the roller in a simple manner and without additional elements, according to the invention, each installed part (2, 3) is connected to a bending lever (5, 6) and the positioning element (4) is disposed such that the positioning force thereof is introduced into the bending lever (5, 6) at a location (G) removed from the center plane (M) of the installed part (2, 3), and thereby into the installed part (2, 3).
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: October 1, 2013
    Assignee: SMS Siemag AG
    Inventor: Hans-Georg Hartung
  • Publication number: 20130192324
    Abstract: The present application relates to a vibration damping system for a rolling mill comprising a rolling cage and a bending adjustment system (3,3?) of the rollers comprising hydraulic actuators acting on the rollers and hydraulic circuits (18, 19) for feeding, and hydraulic damping means (25, 31, 32) of a force connected to the hydraulic circuits (18, 19) for actuating a damping effect by means of the hydraulic actuators. The hydraulic damping means comprises a pair of hydraulic pumps (25B, 25C) or a pair of hydraulic cylinders with a dual chamber, connected in an opposite direction to each other to the hydraulic circuits (18, 19).
    Type: Application
    Filed: October 7, 2011
    Publication date: August 1, 2013
    Applicant: DANIELI & C. OFFICINE MECCANICHE S.P.A.
    Inventors: Luciano Vignolo, Andrea De Luca, Matteo Nobile, Nicola Amati, Carmine Pristera, Giuseppe Romeo, Andrea Tonoli
  • Publication number: 20130104617
    Abstract: An improved roll bending system is described for the work rolls and intermediate rolls in a six high mill. New bending blocks apply improved roll bending forces to the roll chocks, and additionally, are designed to move vertically and rotate, which provide important benefits to maintenance and enhance the rolling operation. Additionally, important related details to the mill operation and bending blocks provide operational improvements during roll changing.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 2, 2013
    Inventors: Remn-Min Guo, Alfred Armack, Paul DiNello, John Herbst, Jerry Martin, Wadaw Mielicki
  • Patent number: 8365566
    Abstract: A device for adjusting the distance of stripper chisels from a circumference of work rolls supported in chocks of a roll stand, wherein the stripper chisels are movable parallel to the rolling line in direction towards and away from the roll gap. To adapt to different operating positions and diameters of the work rolls, the stripper chisels are arranged in a horizontally displaceable stand roller table. The movement of the stand roller table is linked with the vertical movement of the bottom work roll so that the stripper chisel can be moved away from the work roll when the bottom work roll moves upward, and vice versa.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: February 5, 2013
    Assignee: SMS Siemag AG
    Inventors: Hendrik Langer, Christian Hehmann
  • Patent number: 8341994
    Abstract: A rolling mill stand and related rolling mill for rolling rod-shaped bodies, even large in size, which meets the requirement of stiffness uniformity of the rolling mill stands in the transversal direction, all the hydraulic capsules being firmly fixed to the external structure of the rolling mill and providing for the side change of the rolls of each stand. The arrangement of rolling rolls and related extensions of each rolling mill stand is such to avoid problems of corrosion and damaging to the extensions themselves and to the reducers due to the drainage of the cooling waters.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: January 1, 2013
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Cernuschi Ettore, Fabrizio Marini, Aristide Giacomo Bertelli
  • Patent number: 8307678
    Abstract: A gauge control apparatus reduces deviation of an actual plate thickness from a target plate thickness on the delivery side of a rolling mill, in all speed ranges, and produces good products by controlling plate thickness considering changes in the oil film thickness of oil film bearings of backup rolls and the deformation resistance of a rolled material with respect to rolling speeds. The gauge control apparatus computes an oil film thickness compensation value to compensate for increase and decrease of the gap resulting from a change in thickness of the oil film bearing attributable to rolling speeds, an acceleration compensation value to compensate for increase and decrease of plate thickness on the delivery side of the rolling mill resulting from a change in deformation resistance of the rolled material attributable to rolling speeds, and deviation of the predicted plate thickness from the target plate thickness, in consideration of the computed compensation values.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: November 13, 2012
    Assignee: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventor: Minoru Tachibana
  • Patent number: 8276420
    Abstract: Provided is a roll unit for use in a surface treatment of a copper foil, wherein shaft sleeves are fitted to a roll shaft of a roll so that the roll shaft is rotatably supported by a bearing via the shaft sleeves. Additionally provided is a roll unit wherein the shaft sleeves consist of two sleeves, namely a roll-side sleeve arranged on a roll main body side and a tapered sleeve arranged on a shaft end side, an oil seal is arranged between the roll-side sleeve and a bearing box, and the tapered sleeve is supported by a bearing disposed in the bearing box.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 2, 2012
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Haruo Sato
  • Patent number: 8240180
    Abstract: An apparatus for continuously forming an extruded sheet product having an extruder assembly with a sheet die for delivering flowable material. A roll stand assembly has a main frame with first and second rolls. A vertical height positioning mechanism is operated to vary the relationship between the sheet die and nip location between rolls and has first and second lift components that cooperate with the main frame at first and second laterally spaced locations. The first and second lift components are each movable in first and second opposite paths to selectively elevate and lower the nip location relative to the sheet die. The vertical height positioning mechanism further has an actuating system to selectively and simultaneously cause the first and second lift components to move.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: August 14, 2012
    Assignee: Processing Technologies, LLC
    Inventors: Dana R. Hanson, Mitchell L. Gritzner, Ryan E. Leopold
  • Patent number: 8196444
    Abstract: A bending device for two working rolls of a rolling stand. Guide blocks provided in lateral roll housings for guiding two pressure-transmission bodies vertically adjustably with respect to each other and, on which the working rolls are supported via chocks. Bending cylinders are arranged in pairs between the pressure-transmission bodies at each end of the rolls. Each cylinder has a piston rod acting on one pressure-transmission body and a cylinder at the respective other pressure-transmission body. Each pressure-transmission body is supported on a respective guide block in a sliding manner. So that loads acting on the pressure-transmission bodies can be introduced into the guide block free of edge pressure, the pressure-transmission bodies are supported on the respective guide blocks in a sliding manner by self-adjusting wearing plates which include surfaces that enable both sliding and pivoting of the bodies with respect to the guide blocks.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: June 12, 2012
    Assignee: Siemens Vai Metals Technologies GmbH
    Inventors: Gerald Hohenbichler, Armin Schertler, Michael Zahedi
  • Publication number: 20120090373
    Abstract: A fully hydraulic edging system suitable for use in wide plate mills is disclosed. The need for electro-mechanical screws to effect large movements of the side rollers is avoided by employing a pull-back hydraulic cylinder for this purpose. The main hydraulic cylinders are switched to a non-operational mode during large movements thus avoiding the need for large volumes of hydraulic fluid to be transferred under high pressure.
    Type: Application
    Filed: February 9, 2010
    Publication date: April 19, 2012
    Inventors: Michael Trevor Clark, John Franey, Martyn Jones, Andrew Mallison
  • Patent number: 8146397
    Abstract: A support arrangement (10) of a roll of a fibrous-web machine, has a first frame part (12) in which the roll (20) of the fibrous-web machine is supportable from its end when in use and a second frame part (22) in which the first frame part (12) is fastened by means of an elastic fastening. The arrangement has a motion direction control arrangement (34) for controlling the direction of the motion allowed by the elastic fastening in a way determined by the direction control arrangement (34).
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 3, 2012
    Assignee: Metso Paper, Inc.
    Inventors: Kimmo Penttilä{umlaut over ( )}, Marko Jorkama, Heikki Föhr
  • Patent number: 8132440
    Abstract: The invention relates to a roll bending device for the control of profile and flatness in the rolling of metal plates or strips. In particular the invention relates to the well known principle of roll bending by using hydraulic cylinders to modify the load distribution between rolls of a rolling mill stand and a rolled stock e.g. a metal plate or a strip in order to control the profile and flatness of the metal plate or strip. A special design to allow safe roll bending even at large roll gauges is presented. The new design allows safe operation even at large roll gauges and high side loads.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: March 13, 2012
    Assignee: Siemens VAI Metals Technologies Ltd.
    Inventor: Brian Cooper
  • Patent number: 8127584
    Abstract: The present invention provides a Cluster mill which utilizes a Cluster mill gauge control system, has a high mill stiffness, a large work roll gap for threading, a rapid work roll gap opening, accurate roll force computation, side to side tilting, and utilizes work rolls over a much wider diameter range.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: March 6, 2012
    Assignee: I2S, LLC
    Inventor: Remn-Min Guo
  • Publication number: 20110259069
    Abstract: The invention relates to an apparatus (100) for positioning a tool (21) in a profile rolling machine, comprising a base (10) and at least one spindle (30) extending in a first bore (17) of the base as abutment for the tool (21). A retraction rod (25) serves as connection between the base and the tool (21). A tractive force for the retraction rod (25) is generated by an actuator (50) and the tool is pulled by the retraction rod (25) against a tool stop (23). The first bore (17) is locally expanded to form a cylinder chamber (12). A piston (40) is mounted in an axially displaceable manner in the chamber (12). A pressure medium (M) is introduced via a pressure connection (46) into the base (10) into the cylinder chamber (12) between the base and the piston (40) for applying a force (F1) on the piston (40).
    Type: Application
    Filed: April 23, 2011
    Publication date: October 27, 2011
    Inventors: Eberhard ROTH, Ernst Walter MENN
  • Publication number: 20110219835
    Abstract: The invention relates to a roller device (1) comprising a stand with support posts (2, 12, 33), wherein at least one roller (3, 13) of the roller stand is arranged in the space between the support posts and at least one adjuster device (5, 10, 30) is provided for adjusting the rollers (3), wherein the at least one adjuster device (5, 10, 30) is arranged between the rollers (3, 13) and the support posts (2, 2a, 2b, 2c, 2d, 12, 33) and comprises a pressure medium adjuster body (14, 23, 34).
    Type: Application
    Filed: July 9, 2009
    Publication date: September 15, 2011
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Edgar Filk, Sebastian Böcking
  • Patent number: 7984634
    Abstract: Disclosed is a milling device for inline-rolling a steel band which is produced especially by means of a twin-roll continuous casting process. Said milling device comprises at least two rolling units (20, 30) with working rolls (21, 31) that mill the steel band (11) and support rolls (22, 32) which support said working rolls. The working rolls and support rolls are rotatably mounted in bearing housings (23, 24, 33, 34). At least two rolling units (20, 30) are disposed successively in a monolithic or multipiece frame structure (15) such that the rolling temperatures between the rolling units differ only slightly while a simple and inexpensive design is created.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: July 26, 2011
    Assignee: Main Management Inspiration AG
    Inventors: Heinrich Marti, John Turley
  • Publication number: 20110132055
    Abstract: The invention relates to a rolling device comprising at least two working rollers (2, 3) which are each mounted in a rolling stand (6) by means of at least one working roller chock (4, 5), wherein, to adjust a desired rolling nip (7), at least one of the working rollers (2, 3) in the rolling stand (6) can be adjusted relative to the other working roller (2, 3), in particular in the vertical direction, wherein axial displacement means (8) are provided by means of which a working roller (2, 3) can be displaced in its axial direction relative to the rolling stand (6), wherein the axial displacement means (8) comprise an actuating element (9) which is arranged coaxially to the axis (10) of the working roller (2, 3) to be displaced, and wherein at least one working roller (2, 3) is operatively connected to bending means (11) by means of which a roller can be subjected to a bending moment.
    Type: Application
    Filed: July 30, 2009
    Publication date: June 9, 2011
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Christian Diehl, Achim Klein, Bernd Zieser, Florian Lindner
  • Patent number: 7895871
    Abstract: The invention relates to a rolling device (1) comprising at least two working rolls (2, 3) which are respectively mounted in a roll stand (6) by means of working roll assembly pieces (4, 5). At least one of the working rolls (2, 3) is adjustable relative to the other working roll (2, 3) within the roll stand (6), especially in a vertical direction, so as to adjust a desired rolling gap. At east one working roll (2, 3) is effectively connected to bending means (7), with the aid of which said working roll (2, 3) can be impinged upon by a bending moment. The working roll assembly piece (4, 5) is provided with arms (9, 10) that laterally protrude relative to the axis (8) of the working roll (2, 3) to absorb the force generated by the bending means (7).
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: March 1, 2011
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Bernd Zieser, Achim Klein, Florian Lindner, Christian Diehl
  • Publication number: 20110030437
    Abstract: A device for adjusting the distance between a pair of work rollers (40) in an edger of a rolling mill comprising actuator means associable with a respective work roller (40). The actuator means comprise a roll group (10; 10s) including two cylinders (20, 20s; 30, 30s) associated with each other so to slide inside each other and movable between a withdrawn or maximum distance position between the rollers (40) and an advanced or minimum distance position between the rollers (40).
    Type: Application
    Filed: April 23, 2008
    Publication date: February 10, 2011
    Inventors: Kurt Eckelsbach, Mario Perboni, Antonio Rossi
  • Patent number: 7849723
    Abstract: The invention relates to a rolling mill for tubes, in which a series of roll-holder containers (10) is housed in an external structure (2) extended along a rolling axis (L); the containers can slide inside the structure to be extracted therefrom and each one houses at least three rolls (17, 18, 19) controlled by respective driving motors (41, 42, 43). In accordance with the intervention the rolls (17, 18, 19) can be moved inside the containers (10) in a guided way along directions radial in relation to the rolling axis, in order to regulate the distance therefrom.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: December 14, 2010
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Ettore Cernuschi, Fabrizio Marini
  • Publication number: 20100300170
    Abstract: A variable crimp on flange (COF) tool is provided for engaging and attaching a weather strip and like structures onto a flange. The COF tool includes a housing with two or more crimp rollers that project therefrom. For example, a fixed roller is mounted to the housing to rotate in a first direction, while a movable roller is mounted to the housing to rotate in a second, opposite direction. The movable roller is axially offset from and movable relative to the fixed roller. A driving mechanism, such as a pneumatic motor, is encased within the housing, and operates to rotate the crimp rollers. A biasing mechanism, such as a pneumatic piston assembly, is also encased within the housing, and operates to move the movable crimp roller relative to the fixed crimp roller. The COF tool is engineered such that the crimp speed, crimp rate, and crimp pressure are independently adjustable.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: David M. Bentoski, Theodore W. Foster
  • Publication number: 20100251793
    Abstract: The present invention provides a Cluster mill which utilizes a Cluster mill gauge control system, has a high mill stiffness, a large work roll gap for threading, a rapid work roll gap opening, accurate roll force computation, side to side tilting, and utilizes work rolls over a much wider diameter range.
    Type: Application
    Filed: June 18, 2010
    Publication date: October 7, 2010
    Inventor: Remn-Min Guo
  • Patent number: 7765844
    Abstract: The present invention provides a Cluster mill which utilizes a Cluster mill gauge control system, has a high mill stiffness, a large work roll gap for threading, a rapid work roll gap opening, accurate roll force computation, side to side tilting, and utilizes work rolls over a much wider diameter range.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 3, 2010
    Assignee: Intergrated Industrial Systems, Inc.
    Inventor: Remn-Min Guo
  • Patent number: 7743638
    Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, including vertical edging stands, wherein each adjusting cylinder has at least one piston which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by the piston and the piston rod is smaller than the surface formed by the piston and the piston rod.
    Type: Grant
    Filed: January 17, 2009
    Date of Patent: June 29, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Florian Lindner, Stefan Wendt
  • Patent number: 7726168
    Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, includes vertical edging stands, wherein each cylinder has at least one piston, which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by one piston and the piston rod is smaller than the surface formed by another piston and the piston rod.
    Type: Grant
    Filed: January 17, 2009
    Date of Patent: June 1, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Florian Lindner, Stefan Wendt
  • Patent number: 7631531
    Abstract: The invention relates to an adjusting roll for the rapid adjustment of rolls in rolling frames, among others vertical upset forging frames, comprising at least one respective piston, which acts on both sides of a working roll to adjust the latter, by means of assembled parts of at least one working roll or an interposed support roll. The inventive adjusting roll has been improved by the provision of a piston (KO), which is equipped with two piston rods (ST1, ST2) that point in opposite directions and the piston or pistons (KO) are inserted into a respective cavity in the roll base (ZB) or roll cover (ZD), said base and cover comprising coaxial bores for conducting the piston rods (ST1, ST2).
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: December 15, 2009
    Assignee: SMS Demag AG
    Inventors: Florian Lindner, Stefan Wendt
  • Publication number: 20090193867
    Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, including vertical edging stands, wherein each adjusting cylinder has at least one piston which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by the piston and the piston rod is smaller than the surface formed by the piston and the piston rod.
    Type: Application
    Filed: January 17, 2009
    Publication date: August 6, 2009
    Inventors: Florian Lindner, Stefan Wendt
  • Publication number: 20090183545
    Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, includes vertical edging stands, wherein each cylinder has at least one piston, which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by one piston and the piston rod is smaller than the surface formed by another piston and the piston rod.
    Type: Application
    Filed: January 17, 2009
    Publication date: July 23, 2009
    Inventors: Florian Lindner, Stefan Wendt
  • Publication number: 20090107200
    Abstract: A method for manufacturing a hand-tool head involves rolling an elongate blank comprising many hand-tool heads which are connected head-end T by head-end T and tail-end W by tail-end W, then cutting off the blank with length of the hand-tool head, thereby forming hand-tool heads. A rolling mill for continuously rolling the hand-tool head includes an upper roller and a lower roller on each of which a ring-shape cavity is provided respectively. Both rollers are provided with a driving gear and a driven gear. When the rollers are to be driven, they are driven to rotate in opposite directions at a same speed by the gears. A plate billet is drawn into a mould cavity consisting of the two ring-shape cavities by the two ring-shape cavities after feeding in via an inlet of the rolling mill, so as to produce an elongate blank comprising many hand-tool head connected head-end by head-end at an outlet of the rolling mill.
    Type: Application
    Filed: July 18, 2006
    Publication date: April 30, 2009
    Inventor: Shusen Luo
  • Patent number: 7500374
    Abstract: An apparatus for urging an oil film bearing onto and off of a roll neck in a rolling mill comprises an annular hydraulically actuated piston/cylinder unit mounted on a cylindrical section of the roll neck. The cylindrical neck section is delimited at one end by a circular shoulder on the roll neck, and at the opposite end by a circular groove in the roll neck. A retaining ring has lock arms pivotally movable into seated positions in the groove. The piston/cylinder unit is operable in a first mode in an abutting relationship with the lock arms to urge the bearing onto the roll neck, and is operative in a second mode in an abutting relationship with the shoulder to urge the bearing off of the roll neck. The piston/cylinder unit and the lock arms having complimentary tapered surfaces arranged to coact in urging the lock arms inwardly into their seated positions in response to the abutment of the piston/cylinder unit with the lock arms.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: March 10, 2009
    Assignee: Morgan Construction Company
    Inventors: Armando S. Martins, Timothy S. Dolan, Peter N. Osgood
  • Patent number: 7387008
    Abstract: There is provided a new and improved apparatus and method for rolling workpieces such as crankshafts. The apparatus has first and second rolling heads mounted at spaced positions along a common rolling arm to receive a crankshaft bearing therebetween which can then be shifted relative to one another along the common rolling arm to close the heads or rolling tools for clamping onto the workpiece. The in-line clamping action and force provided by the tools on the rolling arm are created by actuation of a tall, thin cylinder assembly including a number of aligned individual cylinders sized to keep the width of the cylinder assembly to a minimum so that all of the rolling arms can likewise be of a thin construction pivotally mounted on one side of the crankshaft and axially spaced according to the crankshaft bearing spacing for rolling all of the bearings in a single rolling operation.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: June 17, 2008
    Assignee: Ingersoll CM Systems, Inc.
    Inventors: Allan J. Heffron, Earl O. Brechtelsbauer, Marc D. St. Pierre
  • Patent number: 7380431
    Abstract: An oil film bearing is disclosed for a rolling mill roll having a tapered neck leading to a reduced diameter end section. The bearing comprises an internally tapered sleeve received in a seated position on the tapered roll neck. The sleeve is journaled for rotation in a bushing fixed within a chock assembly. A tubular piston is received on and fixed relative to the reduced diameter end section of the roll. A cylinder is internally subdivided by the piston into first and second chambers. A sleeve ring abuts an end of the sleeve and a circular thrust component is interposed between and arranged to overlap adjacent segments of the sleeve ring and the piston.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: June 3, 2008
    Assignee: Morgan Construction Company
    Inventors: Dennis H. Shriner, Eric L. Johanson, Peter N. Osgood, Thomas C. Wojtkowski, Jr.
  • Patent number: 7381301
    Abstract: A roll changing carriage can be displaced transversely with respect to the strip rolling stand and a removal crossbar is provided for the removal of the set of backup rolls. In order to shorten the roll changing times and to automate the changing of the rolls, the removal crossbar can be positioned on the roll changing carriage and is provided with wheels on which the removal crossbar can be moved out of the roll changing carriage on guide rails running parallel to the rolls into the strip rolling stand on the intermediate roll rails, and can be pulled out of the strip rolling stand together with the set of backup rolls.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: June 3, 2008
    Assignee: SMS Demag AG
    Inventor: Reinhard Wittkopf
  • Patent number: 7347073
    Abstract: A rolling mill frame for the rolling of different rolled stock which requires different rolling forces and which has working rolls, back-up rolls, optionally a roll being device for the working rolls and optionally a device for adjusting and balancing the back-up rolls. The mill has pairs of adjusting cylinders between the roll stand and the chocks of the rolls which avoid large friction losses. The adjusting cylinders are each comprised of a telescoping cylinder in which a first cylinder with a large diameter for high rolling forces and a concentric cylinder with smaller diameter for smaller rolling forces are provided.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: March 25, 2008
    Assignee: SMS Demag Aktiengesellschaft
    Inventor: Wolfgang Denker
  • Patent number: 7234334
    Abstract: A saddle for a backing assembly in a rolling mill has non-cylindrical bearing surfaces that accommodate wear by allowing the saddles to self-align. The non-cylindrical bearing surfaces help prevent the needle bearings from being pinched and driven into the gear rings. The non-cylindrical bearing surfaces are provided in different locations such as intermediate the eccentric and eccentric ring or intermediate the eccentric ring and the saddle ring.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: June 26, 2007
    Assignee: United Grinding and Machine Company
    Inventor: Dennis P. Pfabe
  • Patent number: 7225657
    Abstract: A method for eliminating the vibrational chatter in a rolling mill stand, whereby existing roll chocks are machined to allow commercially available thrusting means, including hydraulic cylinders and the accompanying fittings and tubing, to be installed directly into the chocks so that when activated the thrusting means thrust horizontally outward to take up any gapping or play occurring between the chock face and the mill housing during normal mill operations, thus effectively eliminating chatter.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: June 5, 2007
    Assignee: United States Steel Corporation
    Inventor: James Stanley Slawinski
  • Patent number: 7188496
    Abstract: The invention relates to a method for detecting the vibrations of a roll stand (1) equipped with a hydraulic jack (6) as a device for adjusting the rolling rolls (4, 5). The hydraulic jack comprises a sensor (64) for measuring the position of the mobile portion relative to the fixed portion, this sensor supplying a digital signal (POS). In the method of the invention, the vibrations are detected by direct observation of the position signal (POS) and a comparison thereof relative to a spatio-temporal window (F) whose dimensions are determined as a function of the frequency to be detected. In accordance with the invention, it is possible to define different observation windows (F) suitable for the detection of different vibratory phenomena.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: March 13, 2007
    Assignee: Vai Clecim
    Inventors: Michel Abi Karam, Emilio Lopez Sabio
  • Patent number: 7111486
    Abstract: The invention relates to a roll stand for hot-rolling or cold-rolling metallic strips. The roll stand comprises back-up rolls and work rolls (2, 3; 4, 5) which are respectively positioned in chocks (6; 7) in a rotating manner. Each chock (6; 7) can be displaced on two sides in guiding devices (8) of the column frame (9) for adjusting the roll gap (10) and can be additionally displaced on at least one side for adjusting the play, by means of horizontal piston cylinder units (11) arranged in the column frame (9). The aim of the invention is to completely eliminate the play in the vertical guiding device (8) of the work roll chocks (6; 7) during the rolling.
    Type: Grant
    Filed: December 1, 2001
    Date of Patent: September 26, 2006
    Assignee: SMS Demag AG
    Inventor: Dieter Figge
  • Patent number: 7086263
    Abstract: A universal rolling stand with control of the space between the rolls comprises a pair of horizontal rolls and one or more vertical rolls with respective chocks, positioning housings and a guide for the chocks with adjustment tie rods (6, 7, 6?, 7?, 18, 18?, 19, 19?) anchored on one side to the housings and acting on the chocks for the adjustment and positioning of the rolls. Adjustment is performed by means of hydraulic capsules (8, 8?, 9, 9?, 20, 20?, 21, 21?) with two hydraulic chambers with dual actuation effect and a double stem at the ends of each tie rod.
    Type: Grant
    Filed: September 2, 2002
    Date of Patent: August 8, 2006
    Assignee: Danieli & C. Officine Meccaniche S.P.A.
    Inventors: Giorgio Lavaroni, Aldo Vergendo, Loris Maestrutti
  • Patent number: 7021105
    Abstract: A device to bend the rolls in a rolling stand, wherein each roll to be bent is rotatably mounted in two corresponding chocks each associated to two series of two double-effect actuators, for a total of four actuators for each chock. Each actuator is disposed on opposite sides of the corresponding chock with respect to the axis of rotation (Y) of the roll to be bent.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 4, 2006
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Fausto Drigani, Stanislaw Pawlowski, Enrico Ventulini
  • Patent number: 6993951
    Abstract: A hot-rolling stand including blocks arranged in the stand windows and having hydraulic piston cylinder units provided as bending devices which are able to transfer bending forces via guide elements onto the chocks of the working rolls. For each block a double-acting hydraulic piston cylinder unit is provided whose two ends are connected with the guide elements. The guide elements have guide that engage both sides of the free ends of noses of the working roll chocks so as to permit axial movement of the working rolls.
    Type: Grant
    Filed: May 6, 2000
    Date of Patent: February 7, 2006
    Assignee: SMS Schloemann-Siemag AG
    Inventors: Peter Sudau, Heinz-Adolf Müller, Stephan Fischer
  • Patent number: 6895794
    Abstract: A screw down cylinder, an upper backup roll chock, and an upper work roll chock are pressed against an upper crosshead by hydraulic cylinders, and an upper roll cross mechanism is actuated, whereby the upper backup roll chock (upper backup roll), the upper work roll chock (upper work roll), and the screw down device (screw down cylinders) can be synchronously moved in the same direction via the upper crosshead.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: May 24, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Mikio Yamamoto, Toshihiro Usugi, Keizou Takemura, Akira Kaya
  • Publication number: 20040187538
    Abstract: A rolling mill frame for the rolling of different rolled stock which requires different rolling forces and which has working rolls, back-up rolls, optionally a roll being device for the working rolls and optionally a device for adjusting and balancing the back-up rolls which has pairs of adjusting cylinders (3) between the roll stand (1) and the chucks (2) avoids large friction losses in that the adjusting cylinders (3) are each comprised of a telescoping cylinder (4) in which a first concentric (5) with a larger diameter for high rolling forces and a concentric cylinder (15) with smaller diameter for smaller rolling forces are provided.
    Type: Application
    Filed: February 3, 2004
    Publication date: September 30, 2004
    Inventor: Wolfgang Denker
  • Patent number: 6763694
    Abstract: Vibration damping apparatus (40) includes a body in the form of backup roll balance piston (42) positionable for sliding movement in an enclosure in the form of cavity (44) in the lower backup roll chock (30) of the mill stack (10). The body of the piston is a casing which performs the role of a conventional postion. A damping means is integral with the piston (42) for providing vibration damping of opposing backup roll chocks (24, 30). The damping means is a specially designed absorption system to provide tuned stiffness and damping elements which act in parallel and are located in compartment (46) at an uppermost end or cap of the piston (42). A second vibration absorbent compartment portion (56) of the piston (42) also includes vibration absorbing components. Portion (56) is an integral cap located at the end of the piston (42) in contact with the fluid (52).
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: July 20, 2004
    Assignee: Industrial Automation Services PTY LTD
    Inventors: Gary Boulton, John Edwards, Paul Meehan, Glen Wallace
  • Publication number: 20040040359
    Abstract: The invention relates to a roll stand for hot-rolling or cold-rolling metallic strips. Said roll stand comprises back-up rolls and work rolls (2,3; 4,5) which are respectively positioned in chocks (6; 7) in a rotating manner. Each chock (6; 7) can be displaced on two sides in guiding devices (8) of the column frame (9) for adjusting the roll gap (10) and can be additionally displaced on at least one side for adjusting the play, by means of horizontal piston cylinder units (11) arranged in the column frame (9). The aim of the invention is to completely eliminate the play in the vertical guiding device (8) of the work roll chocks (6; 7) during the rolling.
    Type: Application
    Filed: June 5, 2003
    Publication date: March 4, 2004
    Inventor: Dieter Figge